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Finding the Fourth Proportional to 260,084.20, 389,543.10 and 260,084.20

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Solution

The fourth proportional to 260,084.20, 389,543.10 and 260,084.20 is: 389,543.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    260,084.20 : 389,543.10 = 260,084.20 : x
  2. Step 2: Convert to fraction form
    260,084.20/389,543.10 = 260,084.20/x
  3. Step 3: Cross multiply
    260,084.20x = 389,543.10 × 260,084.20
  4. Step 4: Simplify right side
    260,084.20x = 101,314,005,529.02
  5. Step 5: Solve for x
    x = 101,314,005,529.02/260,084.20
  6. Step 6: Final answer
    x = 389,543.10

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.